A waiver means you are no longer liable to pay back the amount that was waived from your overpayment. How do I pay back my overpayment?The Treasurer accepts e-Check payments through this Web site with no service fee charged to you. Overpayments happen for various reasons. For example, DES may not budget your correct income or resources. Welcome. The notice or letter you received explains the reason(s) for the contact and provides instruction on how to make corrections. PHOENIX I recent years, people have heard about thousands of Arizonans being forced to pay back unemployment despite doing nothing wrong.